Alert archive / Indiana / Mesoscale Discussions in 2006

Mesoscale Discussion 973

May 25, 200611 counties in Illinois; 48 counties in Indiana; Meade County, Kentucky

The Storm Prediction Center issued this mesoscale discussion at May 25, 2006, 2:50 PM CDT for 11 counties in Illinois; 48 counties in Indiana; Meade County, Kentucky. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
May 25, 2006, 2:50 PM CDT (19:50 UTC)
Expired
May 25, 2006, 4:15 PM CDT
In force
85 min
Issued by
the Storm Prediction Center
All 60 counties

Clark County, IL, Crawford County, IL, Edgar County, IL, Edwards County, IL, Hamilton County, IL, Jasper County, IL, Lawrence County, IL, Richland County, IL, Wabash County, IL, Wayne County, IL, White County, IL, Bartholomew County, IN, Boone County, IN, Brown County, IN, Clark County, IN, Clay County, IN, Crawford County, IN, Daviess County, IN, Decatur County, IN, Dubois County, IN, Fayette County, IN, Floyd County, IN, Franklin County, IN, Gibson County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Harrison County, IN, Hendricks County, IN, Henry County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Marion County, IN, Martin County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Orange County, IN, Owen County, IN, Parke County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Putnam County, IN, Ripley County, IN, Rush County, IN, Scott County, IN, Shelby County, IN, Spencer County, IN, Sullivan County, IN, Union County, IN, Vanderburgh County, IN, Vigo County, IN, Warrick County, IN, Washington County, IN, Meade County, KY

The radar

The Indianapolis radar (KIND), 80 km from the middle of the area, began a volume at 19:53 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 7.8 hours before the alert went out and 219 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2006-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 117 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2006-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
117 J/kg
Mixed-layer CIN
-212 J/kg
Mixed-layer LCL
1749 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
134 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 24, 8:59 PM CDTMesoscale DiscussionSPCEdwards, Wabash91 min
May 25, 12:00 PM CDTMesoscale DiscussionSPCClark, Clay, Coles, Crawford, Cumberland, Douglas and 10 more2 hr
May 25, 1:34 PM CDTTornado WatchSPCClark, Clay, Crawford, Cumberland, Edgar, Edwards and 11 more7 hr
May 25, 3:51 PM CDTMesoscale DiscussionSPCAlexander, Johnson, Massac, Pulaski, Union54 min
May 25, 4:44 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 9 more91 min
May 25, 5:16 PM CDTTornado WatchSPCAlexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more8 hr
May 25, 2:43 PM CDTTornado WatchSPCDearborn, Ohio, Switzerland8 hr
May 25, 2:21 PM CDTMesoscale DiscussionSPCBath, Boyd, Bracken, Campbell, Carter, Elliott and 8 more54 min

Nearby

Mesoscale Discussions in Indiana, 2006Mesoscale Discussions in Illinois, 2006Mesoscale Discussions in Kentucky, 2006Every mesoscale discussion in 2006

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.